29046988981 has 2 divisors, whose sum is σ = 29046988982. Its totient is φ = 29046988980.

The previous prime is 29046988969. The next prime is 29046989011. The reversal of 29046988981 is 18988964092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27013880881 + 2033108100 = 164359^2 + 45090^2 .

It is a cyclic number.

It is not a de Polignac number, because 29046988981 - 2¹¹ = 29046986933 is a prime.

It is a super-2 number, since 2×29046988981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29046988921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14523494490 + 14523494491.

It is an arithmetic number, because the mean of its divisors is an integer number (14523494491).

Almost surely, 2^29046988981 is an apocalyptic number.

It is an amenable number.

29046988981 is a deficient number, since it is larger than the sum of its proper divisors (1).

29046988981 is an equidigital number, since it uses as much as digits as its factorization.

29046988981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17915904, while the sum is 64.

The spelling of 29046988981 in words is "twenty-nine billion, forty-six million, nine hundred eighty-eight thousand, nine hundred eighty-one".